For the Inventor, By the Inventor

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San Jose, CA, United States of America

Wd Media, LLC

Calculating rank

USPTO Granted Patents = 160

% Expired Patents = 55.0

EPO Patents = 1

Forward Citations = 6,001

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183 inventors (with patents filed for the assignee):

B Ramamurthy Acharya (22 out of 39 patents)

Antony Ajan (20 out of 34 patents)

Paul Christopher Dorsey (18 out of 37 patents)

4. David Treves (18 out of 36 patents)

5. Hua Yuan (14 out of 22 patents)

6. Alexander S Chernyshov (14 out of 15 patents)

7. Gerardo Bertero (13 out of 58 patents)

8. Tomoko Seki (10 out of 14 patents)

9. Chaoyuan C Chen (9 out of 11 patents)

10. Harold H Gee (8 out of 10 patents)

11. Andrew M Homola (8 out of 39 patents)

12. Shoji Suzuki (7 out of 29 patents)

13. Kumar Srinivasan (7 out of 11 patents)

14. Thomas Anthony O'Dell (7 out of 22 patents)

15. Mrugesh Desai (7 out of 9 patents)

Core Competencies:

Heat Assisted Magnetic Recording

Thermal Barrier Layers

Magnetic Grain Size

Media Structures

Perpendicular Magnetic Recording

Magnetic Recording Media

Seed Layers

Dynamic Cooling

Magnetic Disk Manufacturing

Magnetic Properties

Lubricants

Electrochemical Etching

160 patents: Sort by Forward Citations

1. 10276201 - Dual phase MgO-X seed layers for heat assisted magnetic recording media (2019-04-30),

2. 10276199 - High thermal gradient heatsink for heat assisted magnetic recording media (2019-04-30),

3. 10236026 - Thermal barrier layers and seed layers for control of thermal and structural properties of HAMR media (2019-03-19),

4. 10121506 - Magnetic-recording medium including a carbon overcoat implanted with nitrogen and hydrogen (2018-11-06),

5. 10115428 - HAMR media structure having an anisotropic thermal barrier layer (2018-10-30),

6. 10054363 - Method and apparatus for cryogenic dynamic cooling (2018-08-21),

7. 9990940 - Seed structure for perpendicular magnetic recording media (2018-06-05),

8. 9984715 - Magnetic disk and manufacturing method thereof (2018-05-29),

9. 9953665 - Systems and methods for applying electric fields during ultraviolet exposure of lubricant layers for hard disk media (2018-04-24),

10. 9824711 - Soft underlayer for heat assisted magnetic recording media (2017-11-21),

11. 9822441 - Iridium underlayer for heat assisted magnetic recording media (2017-11-21),

12. 9818442 - Magnetic media having improved magnetic grain size distribution and intergranular segregation (2017-11-14),

13. 9754618 - Heat-assisted magnetic recording (HAMR) medium including a split heat-sink structure (SHSS) (2017-09-05),

14. 9697859 - Heat-assisted magnetic recording (HAMR) medium including a bi-layer that enables use of lower laser current in write operations (2017-07-04),

15. 9685184 - NiFeX-based seed layer for magnetic recording media (2017-06-20),

Company Overview

Wd Media, LLC, based in San Jose, CA, specializes in advanced technologies related to Heat Assisted Magnetic Recording (HAMR). The company focuses on developing innovative solutions that enhance magnetic recording media, including thermal barrier layers and seed layers, to improve data storage efficiency and performance. Their research encompasses critical aspects such as magnetic grain size and media structures, positioning them at the forefront of next-generation data storage technologies.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Nov 3 2026

160 Patents

#76 in San Jose, CA

#540 in California

#2,485 in US

#5,152 in the World

San Jose, CA, United States of America

Wd Media, LLC

Forward Citations = 6,001

183 inventors:

B Ramamurthy Acharya (22 out of 39 patents)

Antony Ajan (20 out of 34 patents)

Paul Christopher Dorsey (18 out of 37 patents)

4. David Treves (18 out of 36 patents)

5. Hua Yuan (14 out of 22 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Wd Media, LLC. Retrieved from https://idiyas.com/company/wd-media

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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